Wagon



(No Model.)

E. C. DAVIS.

WAGON. No. 399,502. Patented Mar. l2. 1889.

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ELMEH C. DAVIS, OF FRIEDSIHP, NEW' YORK.

WAGON.

SECIFCATION forming part of Letters Patent No. 399,502, dated March l2, 1889.

Application filed January 28, 1888. Serial No. 262,222. (No model.)

Be it known that I, ELnER t. Davis, of Friendship, in the county ot' Allegany and State of New York, have invented new and useful Improvements in. Wagons of which the following is a speciiieation.

This invention relates more particularly to in'iprovei'nents in road-wagons, and has for its object to provide the vehicle with simple and compact mechanism, whereby the body or box is maintained in a horizontal orlevel position irrespective of whether the greater part of the load be located on one side ot' the body or otherwise unequally distributed, thereby insu ring the easy and comfortable riding of the vehicle at all times.

The invention consists ot the improvements which will be hereinafter fully described, and pointed out in the claims.

ln the accompanying drawings, Figure lis a longitudinal. sectional eleva-tion ot' my imA proved wagon, the wheels being removed. Fig. 2 is a bottom plan view thereof with the front axle removed. Fig. S is a transverse section ot the wagon in line .r fr, Fig. l, looking rearwardly. lfiglis ahorizontal section of the ,joint at the inner ends ot the links connecting the horizontal supporting rods or shafts ot' the body.

Like letters ol` rel'erenee reli'er to like parts in the several ligures.

A represents the body or box olf the wagon. ll is the vfrontaxle, and Vltlie rear axle, which are connected by a suitable reach, 7;.

(l (l represent two transverse rock-shafts arranged near opposite ends ot" the body and upon which the latter is suliported, The roekshatts C l are journaled in suitable bearings, (7, secured to the under side ot the body A, and are held against lateral displacement by collars e, t'ormed on or secured to the rock-shafts on the inner sides oi' the bearings 7. The ends ot' the rock-shafts C C extend beyond the sides ot the body A, and are provided with arms f, which. are connected at their free ends to the outer ends ol' transverse elliptical springs G G by pivotal con nections or shackles g, the arms of the rockshaft't C extending forwardly toward the spring G, while the arms oi' the rock-shaft (.I extend rearwardly toward the spring G. The elliptical springs G l are secured to the axles B B in any suitable manner.

ll Il represent horizontal U-shaped frames or yokes pivoted, respectively, to depending arms or levers 71` 71', t'ormcd on or secured to the central portion of tlie rock-shafts C C', and l l are spiral springs arranged horizontally underneath the body A and attached at one end to the branches of the yoke ll and at their opposite ends to the branches of the yoke ll. These spiral springs resist the out ward movement of the levers 71 71,', and tend to draw the same inwardly toward each other, whereby the rock-shafts (l C are turned in a direction which causes the inner ends of their armsj'to be raised, while the latter in turn raise the rock-shafts and hold the body in an elevated position. XYhen the body is depressed, the arms or levers 71 7i are moved outwardly and the spiral springs l are strained.

J .l represent links or bars secured at their inner ends to inwardly-projecting arms jj', formed on the depending` levers 71 7L, and arranged at right angles to the latter, or nearly so. The inner ends of these links are connected together by a movable or sliding connection, consisting, preferably, of a horizontal pin, 7o, secured to the bit'urcated end of one ol. said links and sliding in alongitudinal slot, 7H, formal in the other link. A roller, K2, is preferably mounted on the pin 7s to reduce the trietion. The links J .l serve to impart the movement of one rock-shaft, C, to the other rock-shaft, C', so that when either shaft is given a partial turn by the depression or elevation oli" the body this movement will be transmitted to the other shaft, and the latter be turned in the opposite direction, thereby causing the inner ends of its arms j" to descend or rise in the saine measure as the arms of the Erst-mentioned rockshait. In this manner all parts of the body are compelled to rise and fall uniformly, no matter how unequally the loadis distributed, thereby always maintaining the body in a horizontal position and avoiding the discomfort experienced by the sagging of vehicles as ordinarily constructed, especially when persons of different weights occupy the saine seat, or when a single person sits at one end ofthe seat. The outer ends of the arms f,

TOO

being connected with the elliptical springs G G by pivotal connections, are given the requisite forward and backward play in the rising and falling movements of the body. The spiral springs I I are arranged at a sutlicient distance apart to allow the links J J to pass between them when the body is depressed.

The yokes or frames I-I H are each provided with a series of hooks or notches, Z, with which engage the eyes or loops formed at opposite ends of the 4spiral springs I I, so that the tension of the springs may be regulated in accordance with the approximate load which the Vehicle is required to carry by placing the eyes of the springs in one or the other set of hooks or notches. In the construction shown in the drawings the branches of each yoke are provided with three notches or hooks, thus furnishing six adjustments for the springs. By this construction the springs I are distended when the body is depressed, and the strain is therefore applied to the springs in a manner most desirable for obtaining an easy and gentle motion of the body.

It'is obvious that the links J J may be mounted directly on the shafts C C; but I prefer to construct the same as illustrated, the arms j j being' welded on the rock-shafts, and the links being constructed of cast-iron and bolted to these arms. o

My improved device accomplishes the desired obj ect in a simple and inexpensive manner, it is compact, and none of its parts project'into the body of the vehicle.

I claim as my inventionl. The combination, with the running-gear and the Vehicle-body, of rock-shattsjournaled to the under side of the body and having arms attached to the running-gear, depending arms or levers secured to said rock-shafts, a spiral spring connected at opposite ends to said depending arms and tending to draw said arms links secured, respectively, at their inner ends to said rock-shafts and pivotally con,- nected together at their outer free ends, whereby the movement of either rock-shaft is imparted to the other rock-shaft, substantially as set forth.

2. The combination, withthe running-gear and the body provided with rock-shafts having arms attached to the running-gear, of depending arms or levers also mounted on said rock-shafts, yokes Or frames pivoted to said depending arms, spiral springs connecting said yokes, and connecting-links secured at their inner ends to said rock-shafts and united at their outer ends by a movable connection, substantially as set forth.

3. The combination, with the running-gear and the body provided with rock-shafts having arms attached to the running-gear, of depending arms or levers also mounted on said rock-shafts, yokes .or frames pivoted to said depending arms andprovided with a series of notches or hooks, spircl springs connect ing said yokes, and pivoted links connecting said rock-shafts, substantially as set forth.

i. rIhe combination, with the body and the front and rear axles, B B', having elliptical springs G G, of rock-shafts C C, pivoted to the under side of the body, and having arms f, attached with their outer ends to said elliptical springs, depending arms or levers h L, mounted on said rock-shafts, yokes or frames l-l II, pivoted to the arms h t, spiral springs I, connecting said yokes, and links .I J secured with their inner ends to said rockshafts and united at their outer ends by a connection consisting of a pin secured to one of said links and engaging in a slot formed in the other link, substantially as set forth.

Vitness my hand this 17th day of J anuary, 1888.

ELMER C. DAVIS.

fitnessesz C. J. RICE, FRED N. RICE. 

